def setUp(self):
self.testdir = getAbsPath(self.testdirname)
setupTestfiles(self.testdir, self.testfiles)
cherry.config = cherry.config.replace({'media.basedir': self.testdir})
service.provide('dbconnector', MemConnector)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
self.Cache = sqlitecache.SQLiteCache()
def setUp(self):
self.testdir = getAbsPath(self.testdirname)
setupTestfiles(self.testdir, ())
self.setupConfig()
service.provide('dbconnector', MemConnector)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
self.Cache = sqlitecache.SQLiteCache()
self.Cache.full_update()
def _update_if_necessary(self, update):
"""perform a database update if update (a list of paths to update is
not None. If update is an empty list, perform a full update instead
of a partial update
"""
cache = sqlitecache.SQLiteCache()
if update:
cache.partial_update(*update)
elif update is not None:
cache.full_update()
def setUp(self):
self.testdir = getAbsPath(self.testdirname)
setupTestfiles(self.testdir, self.testfiles)
self.setupConfig()
service.provide('dbconnector', MemConnector)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
self.Cache = sqlitecache.SQLiteCache()
self.Cache.full_update()
self.setupFileObjects()
assert self.fileobjects[''].fullpath == os.path.abspath(self.testdir), \
'precondition: test rootdir has correct fullpath'
def update_filedb(paths):
""" Updates the file database in a separate thread,
possibly limited to a sequence of paths inside media.basedir
See :cls:`~cherrymusicserver.sqlitecache.SQLiteCache` methods
:meth:`~cherrymusicserver.sqlitecache.SQLiteCache.full_update` and
:meth:`~cherrymusicserver.sqlitecache.SQLiteCache.parital_update`.
"""
cache = sqlitecache.SQLiteCache()
target = cache.partial_update if paths else cache.full_update
updater = threading.Thread(name='Updater', target=target, args=paths)
updater.start()
def testRollbackOnException(self):
class BoobytrappedConnector(MemConnector):
exceptcount = 0
def __init__(self):
super(self.__class__, self).__init__()
self.Connection = type(
str('%s.BoobytrappedConnection' %
(self.__class__.__module__)), (self.Connection, ),
{'execute': self.__execute})
def __execute(connector, stmt, *parameters):
'''triggers an Exception when the 'undeletable' item should be
removed. relies on way too much knowledge of Cache internals. :(
'''
if stmt.lower().startswith('delete from files') \
and parameters[0][0] == undeletable.uid:
connector.exceptcount += 1
raise Exception("boom goes the dynamite")
return super(connector.Connection,
connector.connection(sqlitecache.DBNAME)).execute(
stmt, *parameters)
# SPECIAL SETUP
connector = BoobytrappedConnector()
service.provide('dbconnector', connector)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
self.Cache = sqlitecache.SQLiteCache()
self.Cache.full_update()
removelist = self.get_fileobjects_for('root_dir')
for fob in removelist:
self.id_fileobj(fob)
for fob in reversed(removelist):
removeTestfile(fob)
undeletable = self.fileobjects[os.path.join('root_dir', 'first_dir',
'first_file')]
deletable = [self.fileobjects[os.path.join('root_dir', 'first_file')]]
# RUN
self.Cache.full_update()
removed = [f for f in removelist if not self.fileid_in_db(f.uid)]
# ASSERT
self.assertTrue(1 <= connector.exceptcount,
'test must have raised at least one exception')
self.assertEqual(
deletable,
removed,
# self.assertListEqual(deletable, removed,
'complete rollback must restore all deleted entries.')
def setup_cache(testfiles=()):
""" Sets up a SQLiteCache instance bound to current `media.basedir`.
The basedir is assumed to exist (as it must) and can be initialized
with directories and (empty) files.
:param list testfiles: Strings of filenames. Names ending in '/' are directories.
"""
database.resetdb(sqlitecache.DBNAME)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
cache = sqlitecache.SQLiteCache()
basedir = cherry.config['media.basedir']
assert not os.listdir(basedir)
for filename in testfiles:
fullpath = os.path.join(basedir, filename)
setupTestfile(TestFile(fullpath))
cache.full_update()
return cache
def _update_if_necessary(self, update):
cache = sqlitecache.SQLiteCache()
if update:
cache.partial_update(*update)
elif update is not None:
cache.full_update()
def setupCache(self):
service.provide('dbconnector', MemConnector)
database.ensure_current_version(sqlitecache.DBNAME, autoconsent=True)
self.Cache = sqlitecache.SQLiteCache()
self.Cache.full_update()
